Finding the Fourth Proportional to 135,177.96, 186,543.64 and 74,747.28
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Solution
The fourth proportional to 135,177.96, 186,543.64 and 74,747.28 is: 103,150.17
Step by Step Solution
- Step 1: Write the proportion equation
135,177.96 : 186,543.64 = 74,747.28 : x - Step 2: Convert to fraction form
135,177.96/186,543.64 = 74,747.28/x - Step 3: Cross multiply
135,177.96x = 186,543.64 × 74,747.28 - Step 4: Simplify right side
135,177.96x = 13,943,629,691.30 - Step 5: Solve for x
x = 13,943,629,691.30/135,177.96 - Step 6: Final answer
x = 103,150.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.